Harley Davidson Dyna [PROGRESSIVE SUSPENSION] – 412 Series shock absorber

PROGRESSIVE SUSPENSION 412 Series shock absorber for Harley Davidson Dyna

PROGRESSIVE SUSPENSION's 412 Series shock absorbers are specifically designed for the rear suspension of the Harley Davidson Dyna. These monotube shocks provide progressive suspension with a simple progressive spring rate that adapts to different riding conditions.

Technical features

• Damper method: Gas-filled for constant cushioning performance
• Setting execution: Automatically, without manual adjustment
• Spring type: Single progressive spring rate 3.75 to 4.50 kg/mm (210 to 250 lb/in)
• Length (extended): 305mm (12.00 inches)
• Material: Robust steel for a long service life
• Color/Surface: Black
• Mounting position: Rear, with internal reservoir
• Type: Monotube shock absorber with spring sleeve
• Scope of delivery: Pair of shock absorbers

Function and area of application

The PROGRESSIVE SUSPENSION 412 Series shock absorbers are designed for standard use and offer a balanced combination of comfort and stability. Automatic adjustment ensures constant damping that adapts to changing road conditions without the need for manual readjustment.

The progressive spring rate enables gentle suspension over small bumps and increases rigidity under heavier loads. This contributes to improved driving stability and control, especially in changing driving conditions.

Material and workmanship

Made of high-quality steel, the shock absorbers are robust and resistant to mechanical stress. The black surface protects against corrosion and ensures an inconspicuous appearance that fits harmoniously into the design of the Harley Davidson Dyna.

The internal reservoir enables a compact design and contributes to the reliability of the damper. The Monotube construction supports efficient heat dissipation and ensures consistent cushioning performance even on longer rides.

Summary

• Shock absorber specifically designed for the rear suspension of the Harley Davidson Dyna
• Gas-filled monotube technology with automatic adjustment
• Simple progressive spring with variable spring rate
• Robust steel material with black finish
• Supplied as a pair for full replacement

These shock absorbers offer a functional solution to optimize chassis dynamics on the Harley Davidson Dyna and are suitable for riders looking for reliable and low-maintenance suspension.